Precipitation separation device for wastewater treatment of thermal power plant

Abstract

The utility model discloses a thermal power plant wastewater treatment precipitation separation device, which relates to the technical field of wastewater precipitation treatment and comprises a precipitation mechanism, the precipitation mechanism comprises a precipitation tank, a liquid outlet pipe is arranged on the side surface of the precipitation tank, a valve is arranged on the surface of the liquid outlet pipe, and a first fixing frame is arranged on the side surface of the precipitation tank. According to the utility model, the third motor drives the connecting shaft, the mounting assembly and the separation box to rotate, so as to carry out centrifugal spin-drying treatment on the precipitated flocs, thereby obviously reducing the water content of the flocs, reducing the sludge volume, reducing the cost and difficulty of subsequent transportation, storage and treatment, and simultaneously improving the efficiency of subsequent processes such as sludge dewatering and drying; additional equipment or medicament investment is reduced; a first motor drives a lead screw to rotate so that a mounting frame can move upwards, a separation box can be driven to move upwards, mounting bolts are dismounted so that a mounting rod can be separated from a connecting shaft, the separation box can be dismounted conveniently, sediment can be poured and collected conveniently, operation convenience is improved, manual labor intensity is reduced, and material residues are avoided.

Description

Technical Field

[0001] This utility model relates to the field of wastewater sedimentation treatment technology, and in particular to a sedimentation and separation device for wastewater treatment in thermal power plants. Background Technology

[0002] The sedimentation and separation device for wastewater treatment in thermal power plants is a core piece of equipment that achieves solid-liquid separation through mechanisms such as gravity sedimentation, centrifugal force, or chemical flocculation. It can remove suspended solids and heavy metal ions from wastewater and achieve sludge concentration. It is suitable for treating desulfurization wastewater, ash water, oily wastewater, and other similar scenarios. It is often combined with processes such as bar screens, equalization tanks, ultrafiltration, and reverse osmosis to form a complete treatment process.

[0003] However, in the existing technology, after wastewater undergoes chemical flocculation and sedimentation treatment, the floc structure is loose and has a high water content, with a large amount of water trapped inside. This results in high water content in the sludge, making it bulky and increasing the cost and difficulty of subsequent transportation, storage and treatment. Furthermore, the high water content may affect the efficiency of subsequent processes such as sludge dewatering and drying, and may even require additional equipment or chemicals to improve the dewatering effect. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the existing technology that after wastewater undergoes chemical flocculation and sedimentation treatment, the floc structure is loose, the water content is high, and a large amount of water is trapped inside. Therefore, this invention proposes a sedimentation and separation device for treating wastewater from thermal power plants.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a sedimentation and separation device for wastewater treatment in thermal power plants, comprising a sedimentation mechanism, the sedimentation mechanism including a sedimentation tank, an outlet pipe provided on the side of the sedimentation tank, a valve provided on the surface of the outlet pipe, and a first fixed frame provided on the side of the sedimentation tank, a lifting mechanism installed on the upper part of the first fixed frame, a stirring mechanism and a separation mechanism installed on the lower part of the lifting mechanism, one end of the stirring mechanism being located inside the separation mechanism, the separation mechanism including a third motor, a connecting shaft fixedly connected to the output end of the third motor, an installation component fixedly connected to the side of the connecting shaft, a separation box fixedly connected to the end of the installation component, the separation box being located inside the sedimentation tank, an inlet pipe fixedly connected to the surface of the installation frame, and the end of the inlet pipe being located above the separation box.

[0006] Preferably, the mounting assembly includes a sleeve, a mounting rod, and mounting bolts. One end of the mounting rod is fixedly connected to the center of the bottom of the separation box, and the other end of the mounting rod is fixedly connected to the sleeve. The sleeve is inserted into the connecting shaft, and the mounting bolts are threadedly connected to the mounting rod and the connecting shaft, respectively.

[0007] Preferably, the lifting mechanism includes a first motor and a mounting frame. The first motor is fixedly connected to the first fixed frame, and a lead screw is fixedly connected to the output end of the first motor. The lead screw is threadedly connected to the mounting frame. An inlet pipe is fixedly connected to the surface of the mounting frame, and the end of the inlet pipe is located above the separation box.

[0008] Preferably, a limiting rod is fixedly connected to the surface of the mounting bracket, and the limiting rod is inserted into the top of the first fixing bracket.

[0009] Preferably, a second fixing bracket is fixedly connected to the bottom of the mounting bracket, and an annular slide rail is fixedly connected to the side of the second fixing bracket. An annular slider is slidably connected inside the annular slide rail, and the annular slider is fixedly connected to the connecting shaft.

[0010] Preferably, the stirring mechanism includes a second motor, which is fixedly connected to the surface of the mounting frame. A transmission component is installed at the output end of the second motor, which is rotatably connected to the mounting frame. A stirring rod is installed on the surface of the transmission component, and the stirring rod is located inside the separation chamber.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the connecting shaft, mounting components, and separation box are rotated by motor No. 3 to centrifuge and dry the precipitated flocs. This significantly reduces the water content of the flocs, decreases the sludge volume, and lowers the cost and difficulty of subsequent transportation, storage, and treatment. At the same time, it improves the efficiency of subsequent processes such as sludge dewatering and drying, and reduces the input of additional equipment or reagents. Motor No. 1 drives the lead screw to rotate, causing the mounting frame to move upward and the separation box to move upward. Removing the mounting bolts allows the mounting rod to detach from the connecting shaft, facilitating the disassembly of the separation box and the collection of precipitates. This improves operational convenience, reduces manual labor intensity, and avoids material residue.

[0013] 2. In this utility model, the use of a second motor to drive the transmission assembly and stirring rod allows the wastewater and reagents to be fully mixed and reacted, improving the flocculation effect, shortening the reaction time, reducing the amount of reagents used, and increasing the treatment efficiency. The treated wastewater flows out through the outlet pipe, facilitating connection with subsequent treatment processes and ensuring process continuity. When the lead screw drives the mounting frame to move, the limiting rod slides along the first fixed frame to ensure smooth movement of the mounting frame, prevent deviation, and improve structural stability. When the connecting shaft rotates, the annular slider slides along the annular slide rail to enhance the stability of the rotation of the connecting shaft and its lower structure, reduce vibration, avoid shaking, and ensure the reliability and efficiency of the centrifugal drying process. Attached Figure Description

[0014] Figure 1 This utility model provides a first three-dimensional structural schematic diagram of a sedimentation and separation device for treating wastewater in thermal power plants;

[0015] Figure 2 This utility model provides a second three-dimensional structural schematic diagram of a sedimentation and separation device for treating wastewater in thermal power plants;

[0016] Figure 3This utility model provides a cross-sectional side view of a sedimentation and separation device for treating wastewater in thermal power plants.

[0017] Figure 4 This invention provides a cross-sectional three-dimensional structural diagram of an annular slide rail in a sedimentation and separation device for wastewater treatment in thermal power plants.

[0018] Legend: 1. Sedimentation mechanism; 11. Sedimentation tank; 12. Discharge pipe; 13. Valve; 2. Fixing frame No. 1; 3. Lifting mechanism; 31. Motor No. 1; 32. Lead screw; 33. Mounting frame; 34. Limiting rod; 4. Stirring mechanism; 41. Motor No. 2; 42. Transmission assembly; 43. Stirring rod; 5. Separation mechanism; 51. Motor No. 3; 52. Connecting shaft; 53. Mounting assembly; 531. Sleeve; 532. Mounting rod; 533. Mounting bolt; 54. Separation tank; 55. Fixing frame No. 2; 56. Circular slide rail; 57. Circular slider; 6. Inlet pipe. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figures 1-4As shown, this utility model provides a sedimentation and separation device for treating wastewater in thermal power plants, including a sedimentation mechanism 1. The sedimentation mechanism 1 includes a sedimentation tank 11, with an outlet pipe 12 on the side of the sedimentation tank 11 and a valve 13 on the surface of the outlet pipe 12. A first fixing frame 2 is provided on the side of the sedimentation tank 11, with a lifting mechanism 3 installed on the upper part of the first fixing frame 2. A stirring mechanism 4 and a separation mechanism 5 are installed on the lower part of the lifting mechanism 3. One end of the stirring mechanism 4 is located inside the separation mechanism 5. The separation mechanism 5 includes a third motor 51, with a connecting shaft 52 fixedly connected to the output end of the third motor 51. A mounting assembly 53 is fixedly connected to the side of the 52, and a separation box 54 is fixedly connected to the end of the mounting assembly 53. The separation box 54 is located inside the sedimentation tank 11. An inlet pipe 6 is fixedly connected to the surface of the mounting frame 33. The end of the inlet pipe 6 is located above the separation box 54. The lifting mechanism 3 includes a first motor 31 and a mounting frame 33. The first motor 31 is fixedly connected to the first fixed frame 2, and a lead screw 32 is fixedly connected to the output end of the first motor 31. The lead screw 32 is threadedly connected to the mounting frame 33. An inlet pipe 6 is fixedly connected to the surface of the mounting frame 33. The end of the inlet pipe 6 is located above the separation box 54.

[0022] The specific settings and functions of this embodiment are described below. The connecting shaft 52, the mounting assembly 53 and the separation box 54 are rotated by the No. 3 motor 51. The separation box 54 is rotated to centrifuge and dry the flocs inside. After centrifugation and drying, the sediment is rotated by the No. 1 motor 31 to rotate the lead screw 32, which moves the mounting frame 33 upward, thereby moving the separation box 54 upward. The mounting bolt 533 is removed and the mounting rod 532 is disengaged from the connecting shaft 52, making it easy to insert the separation box 54 and pour out and collect the sediment inside.

[0023] The No. 3 motor 51 drives the connecting shaft 52, the mounting assembly 53, and the separation box 54 to rotate, centrifuging the precipitated flocs to dry them. This significantly reduces the water content of the flocs, decreases the sludge volume, and lowers the cost and difficulty of subsequent transportation, storage, and treatment. At the same time, it improves the efficiency of subsequent processes such as sludge dewatering and drying, and reduces the input of additional equipment or chemicals. The No. 1 motor 31 drives the lead screw 32 to rotate, causing the mounting frame 33 to move upward, which in turn moves the separation box 54 upward. Removing the mounting bolts 533 allows the mounting rod 532 to detach from the connecting shaft 52, facilitating the disassembly of the separation box 54 and the dumping and collection of precipitates. This improves the ease of operation, reduces manual labor intensity, and avoids material residue.

[0024] Example 2: Figures 1-4As shown, the mounting assembly 53 includes a sleeve 531, a mounting rod 532, and mounting bolts 533. One end of the mounting rod 532 is fixedly connected to the center of the bottom of the separation box 54, and the other end of the mounting rod 532 is fixedly connected to the sleeve 531. The sleeve 531 is inserted into the connecting shaft 52. The mounting bolts 533 are threadedly connected to the mounting rod 532 and the connecting shaft 52 respectively. A limit rod 34 is fixedly connected to the surface of the mounting frame 33. The limit rod 34 is inserted into the top of the first fixing frame 2. Two... The first fixed bracket 55 has an annular slide rail 56 fixedly connected to its side. An annular slider 57 is slidably connected inside the annular slide rail 56. The annular slider 57 is fixedly connected to the connecting shaft 52. The stirring mechanism 4 includes a second motor 41, which is fixedly connected to the surface of the mounting bracket 33. A transmission assembly 42 is installed at the output end of the second motor 41. The transmission assembly 42 is rotatably connected to the mounting bracket 33. A stirring rod 43 is installed on the surface of the transmission assembly 42. The stirring rod 43 is located inside the separation box 54.

[0025] The overall effect of this embodiment is that wastewater to be treated is injected into the separation tank 54 through the external water supply device connected to the inlet pipe 6, and treatment agents are added into the separation tank 54 at the same time. The transmission component 42 is driven by the second motor 41 to drive the stirring rod 43 to stir the wastewater and agents in the separation tank 54. The wastewater treated by the agents flows out through the outlet pipe 12 for further processing.

[0026] When the lead screw 32 drives the mounting bracket 33 to move upward, the limit rod 34 slides along the upper part of the first fixed bracket 2 to limit the movement of the mounting bracket 33. When the connecting shaft 52 rotates, the annular slider 57 slides along the annular slide rail 56 to limit the rotation of the connecting shaft 52, thereby improving the stability of the rotation of the connecting shaft 52 and its lower fixed structure.

[0027] The second motor 41 drives the transmission assembly 42 and the stirring rod 43 to stir, which can fully mix and react the wastewater with the reagent, improve the flocculation effect, shorten the reaction time, reduce the amount of reagent used, and improve the treatment efficiency. The treated wastewater flows out through the outlet pipe 12, which is convenient for connection with subsequent treatment processes and ensures the continuity of the process. When the lead screw 32 drives the mounting frame 33 to move, the limit rod 34 slides along the first fixed frame 2 to limit the movement, which can ensure that the mounting frame 33 moves smoothly and prevents deviation, thus improving the structural stability. When the connecting shaft 52 rotates, the annular slider 57 slides along the annular slide rail 56 to limit the rotation, which can enhance the stability of the rotation of the connecting shaft 52 and its lower structure, reduce vibration, avoid shaking, and ensure the reliability and efficiency of the centrifugal drying process.

[0028] The method of use and working principle of this device: Wastewater to be treated is injected into the separation tank 54 through the external water supply equipment connected to the liquid inlet pipe 6. At the same time, treatment agents are added into the separation tank 54. The transmission component 42 is driven by the No. 2 motor 41 to drive the stirring rod 43 to stir the wastewater and agents in the separation tank 54. The wastewater treated by the agents flows out through the liquid outlet pipe 12 for the next step of treatment.

[0029] The connecting shaft 52, the mounting assembly 53, and the separation box 54 are rotated by motor 51. The separation box 54 is rotated to centrifuge and dry the precipitated flocs inside. After centrifugation and drying, the precipitate is rotated by motor 31 to rotate the lead screw 32, which moves the mounting frame 33 upward, thereby moving the separation box 54 upward. The mounting bolt 533 is removed to disengage the mounting rod 532 from the connecting shaft 52, making it easy to insert the separation box 54 and pour out and collect the precipitate inside.

[0030] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A sedimentation and separation device for treating wastewater from a thermal power plant, comprising a sedimentation mechanism (1), the sedimentation mechanism (1) comprising a sedimentation tank (11), a liquid outlet pipe (12) provided on the side of the sedimentation tank (11), a valve (13) provided on the surface of the liquid outlet pipe (12), and a first fixing frame (2) provided on the side of the sedimentation tank (11), characterized in that: A lifting mechanism (3) is installed on the upper part of the first fixed frame (2). A stirring mechanism (4) and a separation mechanism (5) are installed on the lower part of the lifting mechanism (3). One end of the stirring mechanism (4) is located inside the separation mechanism (5). The separation mechanism (5) includes a third motor (51). A connecting shaft (52) is fixedly connected to the output end of the third motor (51). An installation component (53) is fixedly connected to the side of the connecting shaft (52). A separation box (54) is fixedly connected to the end of the installation component (53). The separation box (54) is located inside the sedimentation tank (11).

2. A device for precipitate separation in a waste water treatment plant of a thermal power plant according to claim 1, characterized in that: The mounting assembly (53) includes a sleeve (531), a mounting rod (532), and mounting bolts (533). One end of the mounting rod (532) is fixedly connected to the center of the bottom of the separation box (54), and the other end of the mounting rod (532) is fixedly connected to the sleeve (531). The sleeve (531) is inserted into the connecting shaft (52), and the mounting bolts (533) are threadedly connected to the mounting rod (532) and the connecting shaft (52) respectively.

3. The precipitate separation device for treating waste water of a thermal power plant according to claim 1, characterized in that: The lifting mechanism (3) includes a first motor (31) and a mounting frame (33). The first motor (31) is fixedly connected to the first fixed frame (2), and the output end of the first motor (31) is fixedly connected to a lead screw (32). The lead screw (32) is threadedly connected to the mounting frame (33). The surface of the mounting frame (33) is fixedly connected to an inlet pipe (6), and the end of the inlet pipe (6) is located above the separation box (54).

4. The precipitate separation device for treating waste water of a thermal power plant according to claim 3, characterized in that: The mounting bracket (33) is fixedly connected to a limiting rod (34), and the limiting rod (34) is inserted into the top of the first fixing bracket (2).

5. A device for the sedimentation and separation of waste water from a thermal power plant according to claim 4, characterized in that: The mounting bracket (33) is fixedly connected to the bottom of the second mounting bracket (55), and the second mounting bracket (55) is fixedly connected to the side of the annular slide rail (56). The annular slide rail (56) is slidably connected to the inside of the annular slide rail (56), and the annular slide rail (57) is fixedly connected to the connecting shaft (52).

6. A device for precipitate separation in a waste water treatment plant of a thermal power plant according to claim 1, characterized in that: The stirring mechanism (4) includes a second motor (41), which is fixedly connected to the surface of the mounting frame (33). A transmission component (42) is installed at the output end of the second motor (41). The transmission component (42) is rotatably connected to the mounting frame (33). A stirring rod (43) is installed on the surface of the transmission component (42). The stirring rod (43) is located inside the separation box (54).

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